Rabble mechanism.



' PATENTED JULY 21, 1903.

RABBLE MEHANISM. APPLICATION FILED MAR. 25, 190;

4 SHEETS--SHEBT '1 Ni MODEL.

q pi -i'weoaco @22 PATENTED JULY 21, 1903.

I V w. GIDAVIS. RABBLE MECHANISM. APPLIUATION PILEDMAB. 26, 1903 4SHEETS-SHEET 2 N0 MODEL.

/w C v 0 WW W w No. 734,492. i v PATENTED JULY 21, 1903.

, W. 0. DAVIS. RABBLE MECHANISM.-

APPLICATION-FILED 1m. as, 1903.

wi'lhwooen '4 SHEBTSSHEBT 4.

. Patented .nn 'enieoa.

PATENT OFFICE.

WILLIAM C. DAVIS, Oh DENVER, COLORADO.

.BABBLE MECHANISM.

SPECIFICATION forming part of Letters Patent No. 734,492, dated July 21,1903.

Application iiled'Maroh 26, 1903.

To all whom, it may concern:

Be it known that 1, WILLIAM C. DAVIS, a citizen of the United States ofAmerica, residing in the city andcounty of Denver and State of Colorado,haveinvented certain new. and useful Improvements in Rabble Mechanism;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the figures of reference markedthereon, which form a part of this specification.

' My invention relatesto improvements in rabble mechanism for furnacesin which ore is roasted for the purpose of removing its impurities,which retard the separation of the metallic valuesfrom the gangue. In myimproved construction provision is made for holding the rabble-blades incontact with the pulverized ore upon the hearth while traveling in onedirection--namely, toward the rear or discharge end of the furnace.When, however, the rabble-carriage begins the reverse movement, arock-shaft, with which the rabble-shaft is rigidly connected, isautomatically turned sufficiently'to raise the rabbleblades above. theore, in which position these blades or plows are held during the'reversemovement of the rabble-carriage until the front or feed end of thefurnace is reached, when therock-shaft is again actuatedautomati'callyprior to beginning the rearward movement to throw the blades downwardlyinto the ore, whereby as the rabble-carriage travels rearwardly the oreupon the hearth is simultaneously stirred and gradually moved toward thedischarge end of the furnace. The carriage rock-shaft is hollow andfilled with water. The rabble-shaft is also hollow and connected withthe rock-shaft to allow the water in the latter .to circulate freely inthe rabble-shaft for cooling puiposes. This application is limited tothe construction of the rabble mechanism and the means for manipulatingit for the purpose of throwing the rabble-blades into the operative orinoperative posit-ion, as heretofore explained. The i abblge mechanismincludes the rock-shaft, the rabble-shaft, the brackets mounted on therabble-shaft, the blades carried by the embodiment thereof.

Serial No. 149,752. (No model.)

brackets, weights for holding the parts in either position of adjustment,and side troughs in which the extremities of the rock-shaft arejournaled. The manner of propelling the rabble mechanism will not bedescribed in this application, as it forms no part of my presentinvention.

Having briefly outlined my improved construction, I will proceed todescribe the same in detail, reference being made to the accompanyingdrawings, in which is illustrated an In the drawings, Figures 1 and 2taken together form atop view of my improved rabble mechanism. Fig.3may' be called a front or a rear view of the rabble mechanism. lookingfrom one end of the hearth. Fig. 4 shows the rabble mechanism viewedfrom the "side of the hearth, showing the rabble-blades in the operativeposition and illustrating the automatic trip for actuating therock-shaft,

whereby the rabble-blades are raised and lowered, as heretoforeexplained. Fig. 5 is adetail view showing the rabble mechanism inposition when the blades are raised above the hearth. Fig. 6 is a detailview of one of the brackets with which the rabble-blades are connected.In this view the position of the rabble-shat t is indicated by dottedlines.

- The same reference characters indicate the same parts in all theviews.

Let the numeral 5 designate the troughs which form the support for therabble mechanism at the sides of the hearth 6. These troughs are filledwith water and are open at the top. Theymay be supported and propelledin any suitable manner. In suitable bearings attached to a pair of thesetroughs, one on each side, are journaled the extremi-v ties of a hollowrock-shaft 7. The rabbleposes circulates freely between the two shafts.

The rook-shaft may be supplied with water through a hollow arm 16, openat the top and carrying'one of 'the weights connected withthe'rock-shafr as hereinafter explainec'l.

Mounted on the rabble-shaft are saddleshaft 8 is also hollow, extendsparallel with brackets 9, secured in place by U-shaped bolts 10, whichengage the shaft below and are out of the ore, as

-Iower cxtremiLy i by nnin noorc. shown inilic "drawings ignore oro twooi zircon "colic for each iiraclroii. Tlicnc brnclrcio projcct onoppooito cidcs of tho robbicniini'r nod tho rob'olcblades 12 arenccnrcd' to mm opposite on iaromiliec by bolts 13, passed @i'TTOiUi'i-lthe up per member-o of ammo-pieces 1i, iiilO-iifi lowcr members aresecured to i rcbblc-blorjioc, The oxironiitiec of tho bracket-n moslightly turned in opposiio directions toforn 'oiiliquo angles with Lhorabble-shaft, and tho blades or plows 12 are set at angles to thodirection of travel, tho two blades forming each other, whereby the iwoblades of each bracket throw ilio ore in opposite directions and adimncoit toward tho dicclinrgo ox Lrcmityof the furnace as ilioy'firnvci overthohearth. I

Connected with tho rock-shaft branch armn B of tho. rnbbie-ohziifi aretwo Weights 15;, rghoso grnvuflyic rcgniaied to can actiy balzincc'iiicrabble-shaft and'tiio pcric connectedthcrcwibh. Conncctcd with thenweight 16 adapted to maintain the rnoblcshnft rind lilnd'cn in'oitlicrpcsiiion of ncljnot mom-thaws to soy. Wifih irs blade lll'thfi orc whentrzivcling rownrd'riie discharge on tromity of we shaft; or with theblades misc-ll Whom traveling in the re- Vcrsc direction.=- iihcne twopositionc'of Limo rabble mechanismfcro respcct-ivel y indicated inFigs.land 5, and thonziid'mechziniem is hold in tho ono'or tho othcrpoci'cion according zisih'c wcighn l6 occupicn i position on the oneside or the other of :i vcriicci lino lfihc weigh!) EiZiSSECi throughthe rock-shaft. 16 loans from the porpcndiculnrlinc toward the weight;15, the rabhle-blndcs are raised. from the hearth, as shown in Fig; 5,While if the weight 16 is tilted from the vertical toward therabble-shaft the blados of the lottcrare held in thcopormivo position,on shown in Fig. 4. The weight 16 is connected with tho rock-shaft by ahollow nun .6, wiione opening communicates with the shoit-opow ing andforms an oncnpo for the steam. gen, owned by the hem: of tho furnace.Through iliic hollow nrrn 16 water for the purpose of and rabble-shaft,

The rabble-ahaft-isprovidod with one or more may bc introducedsupplying; the rock-chair outlet? pipes or tubes 17 for the escape of"Ab onee rtrczniLy the lOClCShFif is provided with a depending yoke ordevice 18, iiiving two arms 18 and 18. Located inthe pathof this yoizoabeach endof the furnace is a trip:

arm 19, passing upwardly through a bracket Tho of this arm 19 is madefast to crock-shaft; 21, projecting ontcidc'of inc furnace, and whoseoutcr oxtroniifiy is pro ridcd with an arm 22, oiriciidingct right on20, forming a, guide for the said arm.

njlgies withprojcofi ing therefrom in tho direction opposite tho isnoccssiiry n odor 1 tho furnace; is, Hcncc as as heretofore intimated,

l itn normal glen to imi't and having a weight; 23 atioo ontcrcniarcmiiy which acts on fiHGOBiZliJGF birloncc for-tho iron-arm 19 andnormally hoido'ii o said arm. 31 one cntrcmity of the guidobrdckot 2Oor'in the position shown in arm 18 of tho yokc (see Fig 4) engages theopporciriromit-y oi" Lhc L ripnrm 19, which throws the rabble mechanismto the'position shown in Fig.6,raising ,ihe rabble-blades nbovo n1311913111113116. out of the ore thereon,

wiicrooy the hidden aroidlo during the return znovcincnt. When thisoccurs, it iz-rassnmed rlmt; Midi rnbblc iiiccha nisniis moving'in thedircciion of rho arrows in Figs. 4 and 5. In "EMiiio'oicni', Elicarm 19is provcntcd frommoving in tho direction of the carriage or toward onright by o stop of the guide-bracket. llionco the wince-ts on tho rabblemechanism in Lino mrionor (inscribed. Irrordor to prevcrsmiicrooizvnlmft, from moving farther-than ihc condirions stated, fahe maid.shcfliic'providcd with when rho rabble-blades are raised a cnflicio'nl;dicianiico abovo the hearth engages a atop on one of rho oidc iron iisoand holds the rabble mechanism in thoadjusted position.

Ac soon not-ho rabble mechanism reaches the, feed cod of time furnaceand begins the'movemom: toward the discharge ond thoyoke-arm 18 engagenntrip 19, which throws the rabbicmccha-ninm again to the position shownin Fig. 4.: The trip'arnqs 19am free to move in one direction. The onelocated at the discharge cntremiiy of the furnace is free to movc towardthe loft, referring toFics. 4 and 5, while; the onciooa'te'd at the feedend of free to more toward the right. the rabble-carriage approaches thedischarge cnd of tho furnaco the arm 18" of ing; rrco tomovo toward theleft travels in its gnido-lhraclrct until the arc described by its upperoniircmiiy lcave'c' the path of the said yolzc orm, "when ilio Weight 23reiaurnslthe iripnrrn in its normal or vertical position, iici'ng thatonown in-Figige. When th rab bio mechanical approaches the feed and ofthe urnoce, the some operation rakes place-bhat1 in to soy, tho yokcnrm18 engages the triparm, which moves sufficiently to releas e theyoke-arm, after which the trip is returned to position by itscounterbalanceweighiz. From this it will be understood that as soon therabble mechanism reaches cithercnd of the furnace and boginsthe movemcnoin the opposite direction the yoke will engage a trip-arm and reversethoposi- (ion of the robblomechanism. If this mechanic'ni in morningtoward the. discharge end of tho furncco, it; will be actuated to causeits blades to ongogotho ore on the hearth, while if said mechanism isstarting toward an arm 24:, which i a Y of adjustment.

nected with a water-supply conduit 27 wherethis arm is formed anoutlet-opening, from which leads a drain pipe or conduit 28.

above the hearth to disengage them fromthe ore thereon; I r

The trip-arm is hollow and is provided with an upwardly-projectinginlet-pipe 26, conby the water introduced is carried upwardlyand-discharged into the hollow arm at its up per'extrcmity. Near thelower extremity of This water-supply keeps the trip-arm sufficientlycool to prevent injury from-the heat.

.Having thus described my invention, what for limiting the movement ofthe rock-shaft asthe rabble-shaft is lifted from the-hearth. 6. Inrabble mechanism for roasting-furnaces, the combination with travelingsup-.

ports occupying positions at opposite sides of the hearth, a rock-shaftconnected with said supports, a rabble-shaft connected with the nectedwith the rock-shaft opposite the rabhie-shaft, another weight connectedwith the rock-shaft for holding the rabble-shaft in the adjustedposition, a depending device connected with the rock-shaft, and atrip-arm arranged in the path of said device for actn-. atingjtherock-shaft.

I claim isg 1. The combination with travel-ingsidesupports, of arock-shaft jonr'n'aled in saidsupports, and a rabble-shaft rigidlyconnected with the rock-shaft whereby as the rock-shaft is actuated, therabble-shaft is moved away from or toward the hearth. v v v 2. In rabblemechanism, the" combination with traveling side supports, of arock-shaft journaled in said supports, a rabble-shaft extendingparallel-with the rock shaft and rigidly connected therewith whereby asthe rockshaft is actuated, the rabble-shaft is raised or lowered, meansfor actuating the rockshaft, and means for automatically maintaining therabble-shaft-in either position of adjustment. l

3. In' rabble mechanism, the combination with travelingsupports, of arock-shaft whose extremities are journaled in said supports, arabble-shaft connected therewith by suitable 1 arms, means for actuatingthe rock-shaft to ports, of

throw the rabble-sh aft up or down as desired, and a weight connectedwith the rock-shaft for holding the rabble-shaft ineither position 4.The combination with traveling supn ,rock sh'aft whose extremities arejournaled in saidsupport's, a rabble-shaft rigidly bonnected with therock-shat t and occup'ying a position parallel therewith, rabblescarried by the rabble-shat't, the rock-shaft being weighted on the sideopposite the rabbleshaft to balance the latter and its attachments, andahother weight connected with the rock-shaft to destroy its equilibriumwhereby the rabble-shattis'held in either'position of adjustment. l

5. Inrabblfe mechanism, the-combination with supports ldcated at theopposite sides of the hearth, a rock-shaft whose extremities arejournaled in said su pports, a rabble-shaft rigidlyconnected with therock-shaft and extending parallel therewith ,aweight connected with therock-shaft and arranged on the side opposite the rabble-shaft t5 balancethe latter, another weight connected with the rockshaft to'destroy itseqnilibriumand hold the rabble-shaft in any desired position ofadjnstment, means for actuating the rock-shaft the trip-arm is free tomove in one 7. In rabble mechanism, the combination of librium of therock-shaft whereby the rabhie-shaft is held in any desired position ofadjustment, a depending with the rock-shaft, and a at each end of thepath of the depending device of the rock,- shaft, the said trip-armbeing free to'mov'e in one direction but prevented from moving in theopposite direction. i

, 8. In rabble mechanism, the combination of a rock-shaft, arabble-shaft rigidly connected with the rock-shaft and therewith, meansconnect-ed with the rockshat't opposite the rabble-shaft for balancingthe rock-shaft, means for destroying the equilibrium of the rock-shaftwhereby the 'rabhie-shaft may be held. in either position of adjustment,a depending, bifurcated yoke mounted on the rock-shaft, atrip-armprojecting into the path of saidyoke'and arranged to engage onecording'to the direction of travel, the said trip-arm being weighted tohold it in the normal positionor in the path of the bifurcated yoke,,enda guide through which the triparm passes, the arrangement being suchthat trip-arm arranged hut'locked against movement in direction. v

9. In rabble mechanism, the combination with traveling supports locatedat .the sides of the hearth, a rock-shaft journaled in said supports, arabbleshaft connected with the rock shaft, a rabble shat tcounterbalance connected with therock-shaft, a controllerweight alsoconnected with the rock-shaft, an arm connected which said arm engagesto limit the movement of the rock-shaft in one directioma depending,bifurcated part connected with the the opposite rock shaft, acounterbalance weight cona rock-shaft, rabbles connected with therockdevice connected furnaceand lying in thearm of the latter ac-.

direction with the rock-shaft, a stop rock-shaft, and a trip-arm engagedby said part for changing the shafts at predetermined.intervals.

10. The combination with a traveling sup-' position of the rabble port,of smock-shaft journaled therein, a secto raiseqrlower the rabble-shaft,and means oud shaft rigidlyconnected with the rock shaft and lyingparallel therewith, whereby the second. shaft moves in an arc of acircle when the rock-shaft is actuated, brackets mounted on the secondshaft, aml rabble blades or plows connected with the aaid brackets, 11.The combination with. tram/sling supports located atthig siolos ofthohem'th, a. T00l ohaflw Lonnooledwilh said Bupports, a rabbleahal'brigidly connected with the rock-shaft, saddle Brackets connected withthe rock @haits,anci rabble blades or plows connected with the bracketsand occupying positionh on opposite sicles of the mhhloshaft-g 12. Inmhblo mechanism, the eomhiimiion with suitable traveling supportslocated at the opposite sides of the hearth, a, rock-shaft mounted onsaid pamz, a rabble-shaft. con-- eated with the rock-shaft, therook-waft ho ing' hollow and adapted to hold Waiter, tho 2w VJILLIAMDAYL Witnesses:

DENA NELSON, 01m 13. IIoDmcK.

